Accessibility to gases of dye molecules in hybrid surfactant-silica mesophases
(2004) In Studies in Surface Science and Catalysis 154(C). p.3010-3016- Abstract
Two types of CTABr-silica mesophases have been prepared, one of them a powder with hexagonal structure containing Congo Red, another one a film with cubic structure containing Disperse Red 1. In the former case the dye has been occluded via co-entrapping, whereas in the latter it has been covalently anchored to the silica matrix via a co-condensation route. In both systems, the dye molecules proved to be accessible to NH3, HCl and (CH 3)3N in the gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules.
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- author
- Onida, B. ; Borello, L. ; Fiorilli, S. ; Barolo, C. ; Edler, K. J. LU ; Otero Areán, C. and Garrone, E.
- publishing date
- 2004
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- keywords
- Dye, Hybrid mesophase, MCM-41, Optical sensor
- host publication
- Recent Advances in the Science and Technology of Zeolites and Related Materials
- series title
- Studies in Surface Science and Catalysis
- editor
- van Steen, E. ; Claeys, M. and Callanan, L.H.
- volume
- 154
- issue
- C
- pages
- 7 pages
- external identifiers
-
- scopus:11844287561
- ISSN
- 0167-2991
- DOI
- 10.1016/s0167-2991(04)80585-8
- language
- English
- LU publication?
- no
- id
- db2e71d8-8e3b-48a9-ba56-fd8dcdc69807
- date added to LUP
- 2023-05-04 18:28:36
- date last changed
- 2023-06-13 10:13:28
@inproceedings{db2e71d8-8e3b-48a9-ba56-fd8dcdc69807, abstract = {{<p>Two types of CTABr-silica mesophases have been prepared, one of them a powder with hexagonal structure containing Congo Red, another one a film with cubic structure containing Disperse Red 1. In the former case the dye has been occluded via co-entrapping, whereas in the latter it has been covalently anchored to the silica matrix via a co-condensation route. In both systems, the dye molecules proved to be accessible to NH<sub>3</sub>, HCl and (CH <sub>3</sub>)<sub>3</sub>N in the gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules.</p>}}, author = {{Onida, B. and Borello, L. and Fiorilli, S. and Barolo, C. and Edler, K. J. and Otero Areán, C. and Garrone, E.}}, booktitle = {{Recent Advances in the Science and Technology of Zeolites and Related Materials}}, editor = {{van Steen, E. and Claeys, M. and Callanan, L.H.}}, issn = {{0167-2991}}, keywords = {{Dye; Hybrid mesophase; MCM-41; Optical sensor}}, language = {{eng}}, number = {{C}}, pages = {{3010--3016}}, series = {{Studies in Surface Science and Catalysis}}, title = {{Accessibility to gases of dye molecules in hybrid surfactant-silica mesophases}}, url = {{http://dx.doi.org/10.1016/s0167-2991(04)80585-8}}, doi = {{10.1016/s0167-2991(04)80585-8}}, volume = {{154}}, year = {{2004}}, }